var total=$("#solid ul").children().length;
var now=0;
function clock()
  {
	  var cname
	  if(now==total -1){
		now=0; 
	 }else{
		now=now+1; 
	 }
	 for(i=0;i<total;i++){
			cname="#solid .solid" + i;
		   $("#solid ul li").eq(i).css("display","none");
		   $("#btt span").eq(i).css("background","#3d3d3d");
		   $(cname).css("display","none");
	 }
	 
  cname="#solid .solid" + now;
  $("#solid ul li").eq(now).fadeIn(400);
  $("#btt span").eq(now).css("background","#ffffff");
  $(cname).css("display","block");
  }
$(document).ready(function() {
$("#solid ul li").eq(0).fadeIn(400);
$("#btt span").eq(0).css("background","#ffffff");
$("#solid .solid0").fadeIn(50);
$("#solid ul li,#btt span").mouseenter(function(){
	window.clearInterval(int);
	
});
$("#btt span").mouseenter(function(){
	if($(this).index()!=now){
		now=$(this).index()-1;
		clock();
	}
});
var int=self.setInterval("clock()",3000)
$("#solid ul li,#solid span").mouseleave(function(){
	int=self.setInterval("clock()",3000)
});
$("#btt span").eq(1).css("margin-left","52px");
$("#btt span").eq(2).css("margin-left","90px");
});